Herbal tea benefits depend on the ingredient and what you want from the drink. A warm cup can make a routine pleasant. If you are considering it for a specific health concern, look at evidence for the exact ingredient and product rather than a claim about herbal tea as a whole.
Review herbal tea benefits one ingredient at a time
The NIH review of chamomile describes limited evidence for many of the conditions it is marketed for. NIH’s peppermint resource also distinguishes peppermint tea from peppermint oil. An extract, capsule, or essential oil may deliver different amounts of an ingredient than a brewed cup.
Check what a study actually used
When a label cites research, ask what form of the ingredient people took, what outcome was measured, and whether the product tested matches the tea. A finding about a concentrated product tells you little about how much of the ingredient you get from a cup. Consider the evidence before treating a marketing claim as a result you can expect.
Choose a drink you enjoy and review safety separately
Read the full ingredient list. If you take medicines, are pregnant, or have allergies, ask a clinician or pharmacist about unfamiliar herbs. See what to check if you’re concerned about a reaction. For an evening cup, use the drink as part of a routine that suits you.